EP1005408B1 - Verfahren und justierdüse zum spritzgiessen von spritzgussteilen aus plastifizierbarem material - Google Patents
Verfahren und justierdüse zum spritzgiessen von spritzgussteilen aus plastifizierbarem material Download PDFInfo
- Publication number
- EP1005408B1 EP1005408B1 EP98949928A EP98949928A EP1005408B1 EP 1005408 B1 EP1005408 B1 EP 1005408B1 EP 98949928 A EP98949928 A EP 98949928A EP 98949928 A EP98949928 A EP 98949928A EP 1005408 B1 EP1005408 B1 EP 1005408B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fact
- injection
- adjusting nozzle
- plasticized
- plasticized material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0082—Reciprocating the moulding material inside the mould cavity, e.g. push-pull injection moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
- B29C45/1645—Injecting skin and core materials from the same injection cylinder, e.g. mono-sandwich moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C2045/1721—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles making wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Definitions
- the invention relates to a method for injection molding of injection molded parts made of plasticizable material, in which a first plasticized material is injected through a first opening into an injection mold and on Edge of the form solidified and then a second, from the first itself distinguishing plasticized material is injected into the injection mold.
- the invention further relates to an adjusting nozzle for an injection molding device.
- Such processes are known as sandwich processes or as mono-sandwich processes designated. They lead to an outer shell in the injection molded part and a core, the shell and core preferably being made of different Materials are made. The strength of such materials is determined by the Selection of the materials used and their strength influenced.
- EP-A-0 191 623 describes a method for injection molding injection molded parts made of plasticizable material, in which a first plasticizable Material is injected into an injection mold and located on the edge the shape solidified, and then a second, different from the first plasticized material is injected into the injection mold. After the injection, a periodic pressure fluctuation causes further plasticized material inserted and thus increases the packing density.
- EP-A-0 424 624 each have two entrances into a cavity of an injection mold opposed check valves are interconnected. These check valves are also arranged in the injection mold and with the entrance into the injection mold, on which a nozzle of an extruder then attach can, connected.
- the invention has for its object the strength of the known methods to increase producible injection molded parts.
- This object is achieved in that only the second plasticized material is moved during the solidification in such a way that it overflows through a second opening.
- first and second material also except for the used temperature or other parameters can be chosen identically can.
- the invention allows injection molded parts with completely new and create new properties.
- the second plasticized material of at least one second opening is injected into the injection mold.
- the injection of the Material from different sides has the advantage that it can be injected the materials used pistons or screws clocked against each other can be, so that a movement in the second plasticized material arises.
- Such a piston arrangement also allows the second plasticized Move material in one direction only.
- a movement of the second plasticized material in one direction can, however, also by means of a Piston and an overflow opening can be achieved in the injection mold. If the injection mold has two openings, these openings can also be connected to each other via a bypass, so that with a suitable Valve technology the second plasticized material can be moved in a circle. The movement can be generated on the one hand by the feed screws or pistons become. On the other hand, however, a pump can also be provided in the bypass.
- a preferred embodiment provides that the movement through Oscillation of the injection plunger or the injection plunger is generated.
- the Oscillation does not cause a strong mass shift, but has the advantage that the plasticized material is aligned.
- a variant provides that the movement is generated by ultrasound.
- a movement can also be generated in the injection mold using ultrasound which only moves the second plasticized material.
- Another variant provides that an electromagnetic field on the second plasticized material acts. This is also an orientation of the to achieve plasticized material.
- Fluid is understood on the one hand to be a gas on the other hand, however, the fluid can also be any liquid which is in the second plasticized material is injected.
- the fluid becomes Pushing or pushing the material used.
- the fluid be used to one or more cavities in the injection molded part produce. Nevertheless, these processes advantageously remain passive, reacts only insignificantly with the melt.
- Another variant provides that the movement by a melt pump is produced.
- a gear pump instead of a Piston is used, one-way or one-way motion Movement are generated.
- An embodiment of the invention provides that the second plasticized Material from two places at least partially at the same time in the injection mold is injected. The material then meets at one point and it a seam is created there, which is particularly solidified by the movement can or is solidified.
- This seam area leads to a particularly high one Strength and it is therefore suggested that this seam area in particular to lay stressed areas.
- the seam area that used to be in less stressed areas because it has little strength, caused by the movement of the plasticized material during solidification strength increased by a factor of around 4. This advantage is not on that Sandwich process limited, but can generally be used in injection molding be used.
- a film or a reinforcing fabric Injection mold is inserted.
- the foil can be an electrical circuit have and the reinforcing fabric can serve to increase strength.
- the inserted film can consist of different materials.
- a Decorative film is used for optical purposes.
- the film can also be certain chemical and / or physical and / or electrical and / or thermal and / or have optical and / or mechanical properties that the special Use case requires. Films have a wide range of applications, the electrical or generated in a photo-optical or galvanic manner have electronic circuits.
- the usage such reinforcing fabric or films is also taken on its own advantageous to achieve desired properties, such as decor, strength or Conductivity, and on the other hand the high achievable during injection molding Allow manufacturing rates.
- the self-fiber fabric in particular can already be introduced in a directed manner become.
- the method can be operated in such a way that liquid melt is first introduced, which penetrates the tissue.
- the second material for example one with its own fibers permeated melt, introduced and as required in the inventive manner emotional. In this way, a seam can be reinforced in the desired manner.
- a variant of the method which is advantageous in many cases provides that the first material covered only part of the wall of the injection mold. This causes the injection molded part to have an outer wall made of two different ones Has materials, for example, in different colors can.
- a paragraph is preferably in the form used to create a defined transition between the two materials achieve.
- An alternative to this is that after partial filling of the Injection mold with a first material by means of a slide another Area of the injection mold is opened, which then with the second Material is filled.
- the slider also leads to a defined transition from the first to the second material.
- Injection process i.e. for example from the distance that one Feed screw has traveled from the one running through for the spraying process Time or from one determined on the injection device or in the tool Pressure - the slide is activated.
- a modification of the method according to the invention provides that before first plasticizable material at least one other plasticizable Material is injected. This leads to a structure of the injection molded part individual concentric layers, depending on the procedure plasticized material of certain layers can be moved. Moved and unmoving shifts can be alternated and one after the other moving layers like a Baumkuchen are introduced to make a special to produce a solid injection molded part.
- the second plasticized material contains a filler having. Fibers, particles, soot and metals are possible as fillers. As In addition to plastics, plasticized material also comes with plasticizable ceramics and plasticizable powder metal in question.
- the injection molded parts produced by the processes described are suitable because of their high strength as a stabilizer, as a strut or cardan shaft and as a reinforcement sleeve (insert) for various purposes.
- the parts are Can be used particularly well under tension as well as bending.
- the Use of different materials, especially the first plasticized Material opens up the manufacture of covers or housings with seals, Castors with hub and tread, vibration absorber feet, shock absorbers, Cooling water pipes with hard and soft areas, filter elements, Clutch pedals or other pedals.
- thermoplastic rubber as plasticizable Material also allows the production of hinges, two or several solid plastic materials are connected by a rubber piece are.
- the adjustment nozzle is usually in the surface of the injection molding device screwed in and when screwing in the adjusting nozzle, the changes Distance from the nozzle end to the injection molding device.
- This problem will thereby eliminated that a flange attached to the adjusting nozzle or an over the adjustable nozzle pluggable flange firmly connected to the injection molding device is so that the adjusting nozzle in any position rotated about its axis is attachable to the injection molding device.
- the adjustment nozzle has several openings that are to be used alternately is the described device of particular advantage.
- the Adjusting nozzle has different channels and is movable in a block, so that a channel of the adjustment nozzle is aligned with a channel in the block.
- a hot runner block allows either from the adjustment nozzle plasticized material through the hot runner block to the injection mold or to an extruder or the feed on a wall of the block to end and through another channel of the adjustment nozzle To allow flow through the block from this extruder.
- extruders in this way to an injection port Injection mold can be switched.
- the injection mold with a low melting point is preferred Metal alloy tempered.
- An adjustment nozzle for an injection molding device has two interconnected outputs, each with a check valve are provided, the check valves in opposite directions are arranged.
- nozzles with several channels are also conceivable, in which case at least one of the nozzles is a valve, preferably a Check valve, should have. Otherwise, the check valves be chosen appropriately.
- a device for carrying out the method according to the invention and an adjusting nozzle are as Embodiment shown in the drawing and are described in more detail below explained.
- the injection molding device 1 shown in Figure 1 consists of a Injection mold 2 with a mold cavity 3, which has two openings 4 and 5. These openings 4 and 5 are via branching lines 6 and 7 each with two feeders 8, 9 and 10, 11 for plasticized Material connected.
- the branching T-pieces 14, 15 allow it alternately, only one of the feed devices 8 or 9 or 10 or 11 to connect with the mold nest 3.
- plasticized material can first be made from the feed devices 9 and 10 Material are pressed into the feeders 8 and 11 and subsequently, one of the feed devices 8 is first layered Material is pushed into the mold cavity and then out of the other device 11 layered material pushed into the mold cavity. This creates one fourfold stratification in the mold nest.
- the inserted into the mold cavity 3 through an opening 4 Flow over material and through the further opening 5 into another Overflow supply unit or it can be pushed into a bypass 12 become.
- the pump 13 in the bypass 12 allows one Circulation flow through the mold cavity 3.
- FIG. 2 shows an adjusting nozzle 20, which is connected to a flange 21 Injection molding device 22 can be screwed on.
- a graduated paragraph 23 on the Adjusting nozzle 20 is used for the precisely fitting insertion of the adjusting nozzle 20 in an oppositely stepped paragraph 24 on the injection molding device 22. After Attaching the adjusting nozzle 20 to the injection molding device 22 is done by this Slip on the flange 21 and screw the flange 21 onto the Injection molding device 22 attached.
- the adjustment nozzle 20 has an inlet on the side of the injection molding device 22 and two outputs 20 'on the tool side. Opposed check valves 25, 26 and 25 ', 26' are provided.
- FIG. 3 shows one possibility of using such an adjustment nozzle. This allows the molded part 27 either in the direction of arrow 28 or in To flow in the direction of arrow 29. In this way, without Realize different layers. It is understood that other flow paths can also be controlled by such a nozzle 20 can.
- the hot runner block 30 shown in FIG. 4 works with a special one Adjusting nozzle 31 together.
- the heating channel block has a continuous channel 32 and a central round opening 33 intersecting the channel 32 into which the Nozzle head of the adjusting nozzle 31 can be inserted.
- This nozzle head has a cross to the adjusting nozzle axis extending bore 34 which in diameter Channel 32 corresponds and by sinking the adjusting nozzle into the opening 33 of the Hot runner blocks 30 are aligned with the channel 32.
- an L-shaped bore 35 in the adjustment nozzle 31 provided, which is also to be aligned with the channel 32 and then connects the adjustment nozzle body 36 to the channel 32 to plasticize Material from adjusting nozzle body 36 through the L-shaped channel 35 in the Promote channel 32.
- the channel 32 finally has a feed 37 with the mold cavity 3 in Connection.
- the adjustment nozzle can also be used in another direction, so that the L-shaped channel 35 melt from a secondary extruder to one Main extruder, from which the melt can then convey through the channel 35 back into the channel 32 and into the mold nest 3.
- nozzles 20 and 31 ensure by their compact Set up a particularly simple implementation of the above-described methods. You can easily put on instead of existing catchy nozzles Injection molding devices, such as extruders or injection molding machines, are placed be, so that the latter without great structural measures for an application of the method according to the invention can be converted.
- the adjusting nozzles 20 and 31 thus allow different ones in a simple manner Pass through flow paths only by controlling the injection molding device allow.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
- Figur 1
- eine schematische Darstellung einer Spritzgießvorrichtung für das erfindungsgemäße Verfahren,
- Figur 2
- die Befestigung einer Justierdüse an einer Spritzgußvorrichtung und
- Figur 3
- eine schematische Darstellung zur Durchströmung einer Spritzgießform,
- Figur 4
- eine perspektivische Ansicht eines Heißkanalblocks mit Justierdüse und
- Figur 5
- einen Schnitt durch die Justierdüse nach Figur 4.
Claims (17)
- Verfahren zum Spritzgießen von Spritzgußteilen aus plastifizierbarem Material, bei dem ein erstes plastifiziertes Material durch eine erste Öffnung (4,5) in eine Spritzgießform (2) eingespritzt wird und sich am Rand der Form verfestigt und anschließend ein zweites, sich von dem ersten unterscheidendes plastifiziertes Material in die Spritzgießform (2) eingespritzt wird, dadurch gekennzeichnet, daß nur das zweite plastifizierte Material während des Erstarrens derart bewegt wird, daß es durch eine zweite Öffnung (5,4) überströmt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das zweite plastifizierte Material nur in einer Richtung bewegt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bewegung durch Ultraschall erzeugt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein elektromagnetisches Feld auf das zweite plastifizierte Material einwirkt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bewegung durch eine Schmelzepumpe (13) erzeugt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das zweite plastifizierte Material von zwei Stellen (4,5) zumindest zum Teil gleichzeitig in die Spritzgießform (2) eingespritzt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß vor oder nach dem Einspritzen des plastifizierten Materials eine Folie oder ein Verstärkungsgewebe in die Spritzgießform (2) eingelegt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das erste Material nur einen Teil der Wandung der Spritzgießform (2) bedeckt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß nach teilweisem Befüllen der Spritzgießform (2) mit dem ersten. Material mittels eines Schiebers ein weiterer Bereich der Spritzgießform geöffnet wird, der anschließend mit dem zweiten Material gefüllt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß vor dem ersten plastifizierbaren Material mindestens ein weiteres plastifizierbares Material eingespritzt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Spritzgießform (2) mit einer niedrig schmelzenden Metalllegierung temperiert wird.
- Justierdüse für eine Spritzgußvorrichtung, gekennzeichnet durch zwei miteinander verbundene Ausgänge (20'), die jeweils mit einem Rückschlagventil (25, 25'; 26, 26') versehen sind, wobei die Rückschlagventile (25, 25'; 26, 26') gegenläufig angeordnet sind.
- Justierdüse für eine Spritzgußvorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass die Justierdüse (20) an einer Fläche (24) anliegt und mit einem Flansch (21) befestigt ist.
- Justierdüse für eine Spritzgußvorrichtung, dadurch gekennzeichnet, dass die Justierdüse (31) verschiedene Kanäle (34, 35) aufweist und in einem Block (30) beweglich geführt ist, so dass ein Kanal (34, 35) der Justierdüse (31) mit einem Kanal (32) im Block (30) fluchtet.
- Justierdüse nach Anspruch 14, dadurch gekennzeichnet, dass in der Justierdüse (31) ein L-förmiger Kanal (35) vorgesehen ist, der mit einem Nebenextruder verbunden ist.
- Justierdüse nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass der Kanal (32) im Block (30) mit einem Hauptextruder verbunden ist.
- Justierdüse nach einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, dass der Kanal (32) im Block (30) mit einem Formnest (3) in Verbindung steht.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19736371 | 1997-08-21 | ||
DE19736371 | 1997-08-21 | ||
DE19808145 | 1998-02-27 | ||
DE19808145A DE19808145A1 (de) | 1997-08-21 | 1998-02-27 | Verfahren zum Spritzgießen, Spritzgießform und Spritzgießvorrichtung |
US7647298P | 1998-03-02 | 1998-03-02 | |
US76472 | 1998-03-02 | ||
PCT/DE1998/002448 WO1999010157A1 (de) | 1997-08-21 | 1998-08-21 | Verfahren und vorrichtung zum spritzgiessen von spritzgussteilen aus plastifizierbarem material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1005408A1 EP1005408A1 (de) | 2000-06-07 |
EP1005408B1 true EP1005408B1 (de) | 2002-07-31 |
Family
ID=27217666
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98951185A Withdrawn EP1007318A1 (de) | 1997-08-21 | 1998-08-21 | Verfahren zum spritzgiessen, spritzgiessform und spritzgiessvorrichtung sowie verfahren zum befüllen eines hauptextruders aus einem nebenextruder |
EP98949928A Expired - Lifetime EP1005408B1 (de) | 1997-08-21 | 1998-08-21 | Verfahren und justierdüse zum spritzgiessen von spritzgussteilen aus plastifizierbarem material |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98951185A Withdrawn EP1007318A1 (de) | 1997-08-21 | 1998-08-21 | Verfahren zum spritzgiessen, spritzgiessform und spritzgiessvorrichtung sowie verfahren zum befüllen eines hauptextruders aus einem nebenextruder |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP1007318A1 (de) |
WO (2) | WO1999010157A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012004168A1 (de) | 2011-03-04 | 2012-09-06 | Heiner Becker | Verfahren zum Spritzgießen von Hohlkörpern mit Endlosfaser-Verstärkungselementen |
DE102016003035A1 (de) | 2015-03-09 | 2016-09-15 | Heiner Becker | Fluidprozess zum Imprägnieren von Textilien und Beschichten von Preforms |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10307616A1 (de) * | 2003-02-22 | 2004-09-02 | Merck Patent Gmbh | Spritzeinheit zur Verarbeitung schmelzbarer Materialien |
DE102008021021A1 (de) * | 2008-04-25 | 2009-10-29 | Newfrey Llc, Newark | Verfahren zur Herstellung einer Befestigungsvorrichtung und Befestigungsvorrichtung für länglichen Gegenstand |
ITMO20090145A1 (it) * | 2009-05-28 | 2010-11-29 | Mecaplast Di Conti Afro E C S A S | Metodo per realizzare oggetti dotati di cavita' interna |
DE102012025039B4 (de) * | 2012-12-20 | 2015-02-19 | Zahoransky Formenbau Gmbh | Verfahren zur Herstellung von Spritzgießteilen in Zwei-Komponenten-Spritzgießtechnik sowie Spritzgießteil |
DE102018004355A1 (de) * | 2018-06-01 | 2019-12-05 | Entex Rust & Mitschke Gmbh | Mischen von extrudierbaren Kunststoffen mit geringen Mengen anderer Stoffe |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1370075A (en) * | 1972-04-20 | 1974-10-09 | Ici Ltd | Injection moulding |
GB1420948A (en) * | 1972-10-26 | 1976-01-14 | Ici Ltd | Injection moulding process |
DE2704503A1 (de) * | 1977-01-17 | 1978-07-20 | Semperit Gmbh | Halbfertigartikel |
DE2709000A1 (de) * | 1977-03-02 | 1978-09-07 | Schaeffler Ohg Industriewerk | Radial-dichtung und vorrichtung zu ihrer herstellung |
JPS5692038A (en) * | 1979-12-26 | 1981-07-25 | Toppan Printing Co Ltd | Multilayer injection molding |
JPS57187228A (en) * | 1981-05-13 | 1982-11-17 | Matsushita Electric Ind Co Ltd | Molding method of indicator panel in one body |
JPS60109926U (ja) * | 1983-12-28 | 1985-07-25 | アロン化成株式会社 | 二層構造 |
JPS61108519A (ja) * | 1984-11-02 | 1986-05-27 | Yoshida Kogyo Kk <Ykk> | 合成樹脂多色成形品の成形方法並びに成形装置及びその成形品 |
GB8503695D0 (en) * | 1985-02-13 | 1985-03-13 | Bp Chem Int Ltd | Sandwich mouldings |
CH667843A5 (en) * | 1985-08-22 | 1988-11-15 | Bucher Guyer Ag Masch | Monitoring flow etc. in mould system - by fitting mould with electromagnetic waves transmitter and sensor and generating signals based on whether waves are interrupted or not |
DE3932416A1 (de) * | 1989-09-28 | 1991-04-11 | Kloeckner Ferromatik Desma | Verfahren zum spritzgiessen von mehrkomponenten-kunststoffkoerpern und vorrichtung zur durchfuehrung des verfahrens |
DE3934115A1 (de) * | 1989-10-12 | 1991-04-18 | Kloeckner Ferromatik Desma | Spritzgiessform fuer spritzgussteile aus plastifizierbarem material, insbesondere aus plastifizierbaren fluessigkristall-polymeren |
JP2557713B2 (ja) * | 1989-10-13 | 1996-11-27 | 富士写真フイルム株式会社 | 射出成形用金型 |
DE4124342A1 (de) * | 1991-07-23 | 1993-01-28 | Baensch Klaus Peter | Werkzeug zum spritzgiessen |
JP2798103B2 (ja) * | 1991-09-26 | 1998-09-17 | 宇部興産株式会社 | 多層パリソン形成方法 |
JPH08412B2 (ja) * | 1992-07-07 | 1996-01-10 | 肥田電器株式会社 | 緩衝性を有する合成樹脂成形品及びその製造方法 |
US5443378A (en) * | 1994-07-11 | 1995-08-22 | Ferromatik Milacron Maschinenbau Gmbh | Apparatus for the sandwich method of injection molding |
GB2299779A (en) * | 1995-04-11 | 1996-10-16 | Brunel University Of West Lond | Injection moulding of thermoplastic resin |
DE29508151U1 (de) * | 1995-05-17 | 1995-08-17 | Georg Menshen GmbH & Co KG, 57413 Finnentrop | Schlitzventil zum Verschließen von Behältern |
EP0764510A3 (de) * | 1995-09-22 | 1998-05-27 | ICP Systems, Inc. | Gasunterstütztes Spritzgiessverfahren und Vorrichtung |
-
1998
- 1998-08-21 WO PCT/DE1998/002448 patent/WO1999010157A1/de active IP Right Grant
- 1998-08-21 WO PCT/DE1998/002449 patent/WO1999010158A1/de not_active Application Discontinuation
- 1998-08-21 EP EP98951185A patent/EP1007318A1/de not_active Withdrawn
- 1998-08-21 EP EP98949928A patent/EP1005408B1/de not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012004168A1 (de) | 2011-03-04 | 2012-09-06 | Heiner Becker | Verfahren zum Spritzgießen von Hohlkörpern mit Endlosfaser-Verstärkungselementen |
DE102016003035A1 (de) | 2015-03-09 | 2016-09-15 | Heiner Becker | Fluidprozess zum Imprägnieren von Textilien und Beschichten von Preforms |
Also Published As
Publication number | Publication date |
---|---|
WO1999010158A1 (de) | 1999-03-04 |
EP1007318A1 (de) | 2000-06-14 |
WO1999010157A1 (de) | 1999-03-04 |
EP1005408A1 (de) | 2000-06-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0678369A2 (de) | Verfahren zum Spritzgiessen von mindestens aus zwei unterschiedlichen Schichten bestehenden Gegenständen | |
DE2445786B2 (de) | Vorrichtung zur Herstellung eines Spritzgußteiles | |
WO2006045720A1 (de) | Verfahren und vorrichtung zum herstellen profilierter, zumindest abschnittsweise länglicher bauteile | |
WO1998023431A1 (de) | Verfahren und vorrichtung zur herstellung eines mehrschicht-kunststoffteils | |
WO2015011289A1 (de) | Verfahren zur endkonturgetreuen herstellung mechanisch hoch belastbarer kunststoff-bauteile | |
EP3148765A1 (de) | VORRICHTUNG UND VERFAHREN ZUM FASERSPRITZGIEßEN VON SPRITZGUSSTEILEN | |
DE4120133A1 (de) | Bauteil und verfahren zur herstellung eines solchen | |
EP2377665A1 (de) | Vorrichtung und Verfahren zum Spritzgiessen eines mindestens einen Hohlraum aufweisenden Formteils | |
DE102006000657B4 (de) | Verfahren und Vorrichtung zur Herstellung eines teilweise mit einem Abdeckmaterial kaschierten Kunststoff-Formteils sowie das Kunststoff-Formteil selbst | |
DE102014011135B4 (de) | Verfahren und Vorrichtung zur Herstellung eines Dekorteils | |
EP1005408B1 (de) | Verfahren und justierdüse zum spritzgiessen von spritzgussteilen aus plastifizierbarem material | |
DE10306780A1 (de) | Verfahren und Vorrichtung für Schaumspritzguss | |
DE19613134A1 (de) | Verfahren und Vorrichtung zum Herstellen von Kunststoffgegenständen | |
DE102008060080B4 (de) | Zweifarben-Formungsverfahren | |
EP1127674B1 (de) | Verfahren zum Spritzgiessen von mindestens einen Hohlraum aufweisenden Formteilen | |
EP2910357A1 (de) | Verfahren zur Herstellung eines Verbundbauteils | |
EP0295529B1 (de) | Vorrichtung und Verfahren zum Herstellen eines Kunststoff-Verbundteils | |
DE102018215660A1 (de) | Spritzgießwerkzeug zur Herstellung von Spritzgussbauteilen, sowie Verfahren zur Herstellung von Spritzgussbauteilen | |
DE19819833A1 (de) | Verfahren und Vorrichtung zum Einspritzen von Kunststoffmaterial | |
DE102006024307A1 (de) | Vorrichtung zur Herstellung von Formteilen mit mikrostrukturierter Oberfläche | |
DE19808145A1 (de) | Verfahren zum Spritzgießen, Spritzgießform und Spritzgießvorrichtung | |
EP1208955B1 (de) | Spritzgussverfahren mit variablem Formhohlraum zur Herstellung von Korken | |
DE19703291C1 (de) | Verfahren zum Herstellen eines aus mindestens zwei unterschiedlichen Kunststoffen bestehenden Kunststoffgegenstandes | |
DE69628164T2 (de) | Verfahren zur Herstellung von spritzgegossenen Gegenständen, Vorrichtung zur Durchführung dieses Verfahrens und neue geformte Gegenstände | |
WO2018172141A1 (de) | Verfahren und vorrichtung zur herstellung eines bauteils aus thermoplastischem kunststoff sowie bauteil hergestellt nach dem verfahren |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20000315 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB LI NL |
|
RBV | Designated contracting states (corrected) |
Designated state(s): CH DE FR GB LI NL |
|
17Q | First examination report despatched |
Effective date: 20001130 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
RTI1 | Title (correction) |
Free format text: METHOD AND ADJUSTABLE NOZZLE FOR INJECTION MOULDING PLASTIFIABLE PARTS |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020731 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH Ref country code: CH Ref legal event code: EP |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020831 |
|
REF | Corresponds to: |
Ref document number: 59805022 Country of ref document: DE Date of ref document: 20020905 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20020919 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PK |
|
ET | Fr: translation filed | ||
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030506 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090821 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100430 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: S28 Free format text: APPLICATION FILED |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: RN |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090831 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: S28 Free format text: RESTORATION ALLOWED Effective date: 20100720 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: FC |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090821 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59805022 Country of ref document: DE Representative=s name: LIERMANN-CASTELL, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59805022 Country of ref document: DE Representative=s name: PATENTANWALTSKANZLEI LIERMANN-CASTELL, DE Effective date: 20111220 Ref country code: DE Ref legal event code: R081 Ref document number: 59805022 Country of ref document: DE Owner name: TECHNISCHE UNIVERSITAET CHEMNITZ, DE Free format text: FORMER OWNER: STRUCTOFORM SPRITZGIESSEN ANISOTROPER STRUKTURKOMPONENTEN GMBH, 52070 AACHEN, DE Effective date: 20111220 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP Owner name: HEINER BECKER, DE Effective date: 20130418 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20130516 AND 20130522 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59805022 Country of ref document: DE Representative=s name: PATENTANWALTSKANZLEI LIERMANN-CASTELL, DE Effective date: 20131114 Ref country code: DE Ref legal event code: R081 Ref document number: 59805022 Country of ref document: DE Owner name: TECHNISCHE UNIVERSITAET CHEMNITZ, DE Free format text: FORMER OWNER: BECKER, HEINER, 52477 ALSDORF, DE Effective date: 20131114 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20140130 AND 20140205 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R084 Ref document number: 59805022 Country of ref document: DE Effective date: 20140530 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP Owner name: TECHNISCHE UNIVERSITAT CHEMNITZ, DE Effective date: 20140613 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 746 Effective date: 20141223 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 19 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20170830 Year of fee payment: 20 Ref country code: FR Payment date: 20170830 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59805022 Country of ref document: DE Representative=s name: PATENTANWALTSKANZLEI LIERMANN-CASTELL, DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20171020 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59805022 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20180820 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20180820 |